Home / 10,211.48-15,317.22-2,815.70

Finding the Fourth Proportional to 10,211.48, 15,317.22 and 2,815.70

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Solution

The fourth proportional to 10,211.48, 15,317.22 and 2,815.70 is: 4,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.48 : 15,317.22 = 2,815.70 : x
  2. Step 2: Convert to fraction form
    10,211.48/15,317.22 = 2,815.70/x
  3. Step 3: Cross multiply
    10,211.48x = 15,317.22 × 2,815.70
  4. Step 4: Simplify right side
    10,211.48x = 43,128,696.35
  5. Step 5: Solve for x
    x = 43,128,696.35/10,211.48
  6. Step 6: Final answer
    x = 4,223.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.